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24 changes: 24 additions & 0 deletions Configuration.md
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# Configuration

Here is a list of the properties for GridDB.

|Property|Description|Required|Default Value|
|---|---|---|---|
|kairosdb.datastore.griddb.cluster_name|Name of GridDB cluster|Required if GridDB is the selected datastore.||
|kairosdb.datastore.griddb.user|User name to access GridDB cluster|Required if GridDB is the selected datastore.||
|kairosdb.datastore.griddb.password|User password to access GridDB cluster|Required if GridDB is the selected datastore.||
|kairosdb.datastore.griddb.notification_address|An IP address (IPV4 only) for receiving a notification used for autodetection of a GridDB master node|Required if using MULTICAST method to connect to GridDB cluster (cannot be specified with neither notification_member nor notification_provider properties at the same time)|239.0.0.1|
|kairosdb.datastore.griddb.notification_port|An IP port for receiving a notification used for autodetection of a GridDB master node|Required if notification_address is specified|31999|
|kairosdb.datastore.griddb.notification_member|"List of GridDB cluster nodes. In the form of: (Address1):(Port1),(Address2):(Port2),... "|Required if using FIXED LIST method to connect to GridDB cluster (cannot be specified with neither notification_address nor notification_provider properties at the same time)||
|kairosdb.datastore.griddb.notification_provider_url|URL of address provider used to connect to cluster which is configured with PROVIDER mode|Required if using PROVIDER method to connect to GridDB cluster (cannot be specified with neither notification_address nor notification_member properties at the same time)||
|kairosdb.datastore.griddb.consistency|Can be one of two consistency levels: IMMEDIATE or EVENTUAL|Optional|IMMEDIATE|
|kairosdb.datastore.griddb.container_cache_size|Size of cache to store GridDB ContainerInfos which are used to get Container without requesting to GridDB |Optional|0|
|kairosdb.datastore.griddb.data_affinity_pattern|GridDB affinity pattern for each container|Optional||
|kairosdb.datastore.griddb.failover_timeout|The minimum value of waiting time in seconds until a new destination is found in a failover|Optional|60|
|kairosdb.datastore.griddb.transaction_timeout|The minimum value of transaction timeout time in seconds|Optional|300|
|kairosdb.datastore.griddb.datapoint_ttl|Datapoint time to live in seconds (TTL). Datapoint is deleted automatically if its timestamp plus ttl is smaller than current time|Optional|0(forever)|
|kairosdb.datastore.griddb.max_data_cache_size|The maximum cache size created by GridDB module for processing datapoints|Required if GridDB is the selected datastore.||
|kairosdb.datastore.griddb.max_write_buffer_size|The maximum buffer size created by GridDB module for adding new datapoints|Required if GridDB is the selected datastore.||
|kairosdb.datastore.griddb.number_request_concurrency|The maximum number of connections at a time to GridDB cluster|Required if GridDB is the selected datastore.||
|kairosdb.datastore.griddb.write_delay|Time delay before data are written to GridDB from write buffer|Required if GridDB is the selected datastore.||
|kairosdb.datastore.griddb.write_buffer_datapoint|The maximum number of write buffer created for adding new datapoints|Required if GridDB is the selected datastore.||
202 changes: 202 additions & 0 deletions LICENSE
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111 changes: 110 additions & 1 deletion README.md
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# griddb_kairosdb
GridDB connector for KairosDB

## Overview

GridDB connector for KairosDB is a module supporting connection between GridDB and KairosDB. By implementing this module, clients are able to interact with GridDB via KairosDB as interface.

[KairosDB](https://github.com/kairosdb/kairosdb) is a time series database with metrics and tags.
And it can be configured to use one of several backends(H2, Cassandra and HBase) for storing data.
http://kairosdb.github.io/docs/build/html/GettingStarted.html

So, we made it possible to use GridDB as another backend of KairosDB.

## Operating environment

Library building and program execution are checked in the environment below.

OS: CentOS6.7(x64)
Java: JDK 1.8.0_101
GridDB: Version 3.0
KairosDB: Version 1.1.1

## QuickStart
### Preparations

1. Install KairosDB

$ curl -O --location https://github.com/kairosdb/kairosdb/archive/v1.1.1.tar.gz
$ tar xfvz v1.1.1.tar.gz
$ cd kairosdb-1.1.1

2. Copy GridDB connector for KairosDB under KairosDB src folder

$ cp -r <src/main/java/org/kairosdb/datastore/griddb folder in GridDB connector> src/main/java/org/kairosdb/datastore/.

3. Please edit file ivy.xml

<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-pool2 -->
<dependency org="org.apache.commons" name="commons-pool2" rev="2.0"/>

4. Please edit file src/main/resources/logback.xml

<logger name="com.toshiba.mwcloud.gs.GridStoreLogger" level="INFO"/>

5. Please modify file src/main/resources/kairosdb.properties

#kairosdb.service.datastore=org.kairosdb.datastore.h2.H2Module
kairosdb.service.datastore=org.kairosdb.datastore.griddb.GriddbModule

...

#===============================================================================
#GridDB properties
kairosdb.datastore.griddb.cluster_name=<GridDB cluster name>
kairosdb.datastore.griddb.user=<GridDB user name>
kairosdb.datastore.griddb.password=<GridDB password>
#Define address and port for multicast method, leave it blank if using other method
kairosdb.datastore.griddb.notification_address=<GridDB notification address(default is 239.0.0.1)>
kairosdb.datastore.griddb.notification_port=<GridDB notification port(default is 31999)>
#Define nodes fixed list method, leave it blank if using other method, node list is in the form> 1.1.1.1:10001,1.1.1.2:10001
kairosdb.datastore.griddb.notification_member=
#Define url for provider method, leave it blank if using other method
kairosdb.datastore.griddb.notification_provider_url=
kairosdb.datastore.griddb.consistency=
kairosdb.datastore.griddb.container_cache_size=
kairosdb.datastore.griddb.data_affinity_pattern=
kairosdb.datastore.griddb.failover_timeout=
kairosdb.datastore.griddb.transaction_timeout=
kairosdb.datastore.griddb.datapoint_ttl=0
kairosdb.datastore.griddb.max_data_cache_size=50000
kairosdb.datastore.griddb.max_write_buffer_size=500000
kairosdb.datastore.griddb.number_request_concurrency=100
kairosdb.datastore.griddb.write_delay=1000
kairosdb.datastore.griddb.write_buffer_datapoint=8

Please refer to [Configuration](Configuration.md) for GridDB properties.

Note: Make sure that GriddbModule configuration line in kairosdb.properties file is uncommented.

6. Build a GridDB Java client and place the created gridstore.jar under the following folder.

lib/

### Build and Run

GridDB cluster needs to be started in advance.

Execute the command on kairosdb-1.1.1 folder.

$ java -cp tools/tablesaw-1.2.2.jar make run


## Caution and Limitation

* Caution
Datapoint is stored in time series type container assigned for each different set of metric name, tag name and tag value.
Datapoint time to live in seconds (TTL) is only applied to time series type container at creation time of container.
* Limitation
Metric name, tag name, tag value in current database schema can only include alphabet and numerical characters, cannot contain special ones. The metric name should not be case sensitive and has to start with alphabet characters.

## Community

* Issues
Use the GitHub issue function if you have any requests, questions, or bug reports.
* PullRequest
Use the GitHub pull request function if you want to contribute code.
You'll need to agree GridDB Contributor License Agreement(CLA_rev1.1.pdf).
By using the GitHub pull request function, you shall be deemed to have agreed to GridDB Contributor License Agreement.

## License

The GridDB connector for KairosDB source license is Apache License, version 2.0.
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